Suse Linux 9.3 For Dummies- P2

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Suse Linux 9.3 For Dummies- P2:This part is all about getting you started on your way to a lasting relationship with SUSE Linux. Before you can begin your SUSE Linux experience, I spend a chapter explaining what SUSE Linux is and what you can do with SUSE Linux (pretty much anything you can do with a PC that runs Windows).

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Table of Contents xiii Connecting to the Internet with DSL .........................................................108 How DSL works ...................................................................................108 Stirring the DSL alphabet soup: ADSL, IDSL, SDSL.........................110 Typical DSL setup...............................................................................110 Connecting to the Internet with a Cable Modem .....................................114 How cable modems work ..................................................................114 Typical cable modem setup ..............................................................116 Dialing Up the Internet ................................................................................119 Connecting the modem .....................................................................120 Configuring the modem .....................................................................121 Chapter 8: Setting Up an Ethernet LAN with Wireless Access . . . . .123 Getting a Handle on Ethernet .....................................................................123 Connecting PCs to an Ethernet LAN ..........................................................124 Configuring the Ethernet Network .............................................................125 Connecting Your LAN to the Internet ........................................................126 Extending Your LAN with a Wireless Network .........................................128 Understanding wireless Ethernet networking ................................128 Understanding infrastructure and ad hoc modes ..........................129 Understanding Wired Equivalent Privacy (WEP) ...........................130 Setting up the wireless hardware .....................................................130 Configuring the wireless access point .............................................131 Configuring wireless networking......................................................132 Checking whether Your Network Is Up .....................................................135 Checking the network interfaces......................................................135 Checking the IP routing table............................................................136 Checking connectivity to a host .......................................................136 Part III: Doing Stuff with SUSE ..................................139 Chapter 9: Browsing the Web . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .141 Understanding the World Wide Web .........................................................142 Links and URLs ...................................................................................142 Web servers and Web browsers .......................................................145 Web Browsing in SUSE Linux ......................................................................146 Web Browsing with Konqueror in KDE......................................................147 Web Browsing with Mozilla in GNOME......................................................149 Getting familiar with the Mozilla interface......................................150 Changing your home page.................................................................152 Introducing Epiphany and Firefox..............................................................153 Chapter 10: E-Mailing and Instant Messaging in SUSE . . . . . . . . . . .155 Understanding E-Mail ..................................................................................156 How MUA and MTA work...................................................................156 Mail message enhancements ............................................................157 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.
xiv SUSE Linux 9.3 For Dummies E-Mailing in SUSE Linux ...............................................................................158 Introducing KMail ...............................................................................158 Introducing Evolution Mail................................................................160 Instant Messaging in SUSE Linux................................................................163 Using Kopete .......................................................................................164 Using GAIM..........................................................................................166 Chapter 11: Reading Newsgroups . . . . . . . . . . . . . . . . . . . . . . . . . . . . .169 Understanding Newsgroups .......................................................................169 Newsgroup hierarchy.........................................................................170 Top-level newsgroup categories.......................................................171 Some Linux-related newsgroups.......................................................172 Reading Newsgroups from Your ISP ..........................................................173 Taking stock of newsreaders in SUSE Linux....................................174 Introducing KNode .............................................................................174 Introducing Pan ..................................................................................177 Newsgroup subscriptions .................................................................179 Posting news .......................................................................................179 Reading and Searching Newsgroups at Web Sites ...................................180 Chapter 12: Preparing Documents and Spreadsheets in SUSE Linux . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .183 Writing with OpenOffice.org Writer ...........................................................183 Taking stock of OpenOffice.org Writer ............................................184 Getting started with Writer ...............................................................185 Setting up Writer.................................................................................187 Preparing documents in Writer ........................................................187 Editing and reviewing documents....................................................188 Using styles and templates ...............................................................189 Doing page layout...............................................................................192 Creating and inserting graphics .......................................................194 Using fields ..........................................................................................195 Working with large documents .........................................................196 Preparing Spreadsheets with OpenOffice.org Calc..................................197 Taking stock of OpenOffice.org Calc ................................................197 Getting started with Calc...................................................................198 Entering and formatting data............................................................201 Calculating and charting data...........................................................201 Chapter 13: Doing Even More Office Stuff in SUSE Linux . . . . . . . . .205 Keeping Track of Appointments and Tasks ..............................................205 Making Calculations.....................................................................................207 Making Presentations with OpenOffice.org Impress ...............................208 Taking stock of OpenOffice.org Impress..........................................208 Getting started with Impress ............................................................209 Using Impress......................................................................................212 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.
Table of Contents xv Preparing presentations ....................................................................213 Adding graphics and special effects ................................................215 Delivering presentations ...................................................................216 Chapter 14: Playing Music and Burning CDs . . . . . . . . . . . . . . . . . . . .217 Playing Audio CDs........................................................................................217 Playing Music Files.......................................................................................219 Burning a CD/DVD........................................................................................221 Burning CD/DVDs with K3b...............................................................221 Burning data CDs in Nautilus............................................................225 Chapter 15: Working with Photos and Images . . . . . . . . . . . . . . . . . . .227 Downloading Photos from a Digital Camera.............................................228 Scanning Photos and Documents ..............................................................232 Editing Images with The GIMP....................................................................237 Viewing Images .............................................................................................239 Viewing PDF and PostScript Files...............................................................241 Chapter 16: What’s a Shell and Why Do I Care? . . . . . . . . . . . . . . . . . .243 Opening Terminal Windows and Virtual Consoles ..................................243 Exploring the Bash Shell .............................................................................244 Understanding the syntax of shell commands ...............................245 Combining shell commands..............................................................246 Controlling command input and output..........................................246 Typing less with automatic command completion........................248 Going wild with asterisks and question marks...............................248 Repeating previously typed commands ..........................................250 Part IV: Becoming a SUSE Wizard ..............................253 Chapter 17: Look Ma, I’m a Sysadmin! . . . . . . . . . . . . . . . . . . . . . . . . . .255 What Does a Sysadmin Do?.........................................................................255 Becoming root, When You Must.................................................................257 Resetting a Forgotten root Password ........................................................257 Introducing Your New Friend, YaST ...........................................................259 Starting and Stopping Services ..................................................................261 Understanding how Linux boots ......................................................261 Trying a new run level with the init command...............................263 Using YaST to start and stop services .............................................264 Manually starting and stopping services ........................................264 Checking Your System’s Performance.......................................................265 Using the top utility ...........................................................................265 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.
xvi SUSE Linux 9.3 For Dummies Using the uptime command ..............................................................267 Checking disk performance and disk usage....................................268 Managing Hardware Devices ......................................................................269 Managing User Accounts.............................................................................270 Chapter 18: Updating SUSE and Adding New Software . . . . . . . . . . .273 Updating SUSE Linux Online .......................................................................274 Locating and Installing Software Using YaST............................................277 Using RPM Commands to Work with RPM Files.......................................280 Using the RPM commands ................................................................281 Understanding RPM filenames..........................................................281 Querying RPMs ...................................................................................282 Installing an RPM................................................................................284 Removing an RPM ..............................................................................285 Upgrading an RPM..............................................................................285 Chapter 19: Securing SUSE Linux . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .287 Why Worry about Security?........................................................................287 Understanding Linux Security ....................................................................288 Understanding the host security issues..........................................288 Understanding network security issues..........................................289 Getting Familiar with Computer Security Terminology ..........................290 Practicing Good Host Security ...................................................................295 Making passwords expire..................................................................295 Protecting files and directories ........................................................296 Securing the Network ..................................................................................300 Securing Internet services.................................................................301 Turning off stand-alone services ......................................................301 Configuring the Internet superserver ..............................................301 Configuring TCP wrapper security...................................................302 Using Secure Shell (SSH) for remote logins.....................................303 Setting up a simple firewall ...............................................................304 Using NATs...........................................................................................307 Keeping Up with Security News and Updates ..........................................308 Part V: The Part of Tens .............................................309 Chapter 20: Ten Frequently Asked Questions about SUSE . . . . . . . . .311 What Does SUSE Stand for and How Do You Pronounce It? ...................311 How Can I Find Answers to My SUSE Linux Questions?..........................312 When Is the Next SUSE Linux Release?......................................................312 Can I Get ISO Files for SUSE Linux from the Internet? .............................313 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.
Table of Contents xvii How Do I Do an FTP Install of SUSE Linux? ...............................................313 How Can I Auto-Login into the KDE Desktop as Another User?.............316 If My System Crashes, Can I Press the Reset Button to Reboot? ...........318 How Can I Schedule a Command to Run Every 30 Minutes? ..................318 How Can I Find All the Huge Files on My SUSE Linux System?...............319 Where Can I Find More SUSE RPMs?..........................................................320 Chapter 21: The Ten Best Things about SUSE . . . . . . . . . . . . . . . . . . .321 YaST — The Super Sysadmin Tool .............................................................321 Detects All Hardware (Well, Nearly All!)....................................................322 Smooth and Easy Installation .....................................................................322 I Love YOU — YaST Online Update............................................................323 Automatic Mounting of My Windows Partitions and USB Memory Stick ..........................................................323 Automatic Login at the KDE Desktop ........................................................324 Good Support for Laptops ..........................................................................324 Easy Browsing of Windows Shares ............................................................324 That Cute Gecko Mascot .............................................................................324 SUSE’s Increasing Popularity ......................................................................325 Chapter 22: Ten Great Web Sites for SUSE Maniacs . . . . . . . . . . . . .327 http://www.suse.com...................................................................................327 http://portal.suse.com/sdb/en/index.html ...............................................328 http://distrowatch.com/table.php?distribution=suse.............................328 http://www.suseforums.net ........................................................................328 http://www.linuxquestions.org/questions/f60..........................................329 http://www.linuxforums.org/forum/forum-36.html..................................329 http://www.linux-laptop.net/ ......................................................................329 http://packman.links2linux.org ..................................................................329 http://www.tldp.org/ ....................................................................................330 http://www.linuxhq.com/guides/ ...............................................................330 Chapter 23: Ten Most Commonly Used SUSE Commands . . . . . . . . .331 apropos: Finding Commands Based on a Keyword .................................332 man: Reading Online Man Page ..................................................................332 ls: Listing Files and Directories ..................................................................333 cat: Feeding Input to Commands ...............................................................333 grep: Searching for Text in Files .................................................................334 locate: Finding Files and Directories the Easy Way .................................335 chmod: Changing Permissions ...................................................................336 rpm: Taming RPM Packages........................................................................337 tar: Packing and Unpacking Archives ........................................................337 pico: Editing Text Files ................................................................................339 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.
xviii SUSE Linux 9.3 For Dummies Appendix: About the DVD-ROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .341 System Requirements ..................................................................................341 DVD Installation Instructions .....................................................................342 What You’ll Find on the DVD ......................................................................343 Troubleshooting ...........................................................................................344 Index........................................................................345 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.
Introduction S USE Linux is an increasingly popular Linux distribution that competes head-on with Red Hat’s Linux versions. SUSE Linux’s fortunes have been on the rise following Novell’s acquisition of Germany’s SUSE Linux AG for $210 million. SUSE is looking for more growth in the U.S. marketplace, helped in part by IBM’s $50 million investment in Novell as part of the SUSE acquisi- tion deal. On another positive note, after acquiring SUSE, Novell announced that SUSE’s famous YaST installation and configuration tool will become open source, licensed under the GNU General Public License. All these develop- ments have generated a distinct “buzz” around SUSE Linux as the up-and- coming Linux distribution for everyone from home users to enterprise servers. A significant factor in SUSE Linux’s increasing popularity is that unlike its com- petitor Red Hat’s singular focus on the enterprise market, Novell continues to address both the enterprise market and Linux enthusiasts. Specifically, the SUSE Linux Professional product is aimed at small-office/home-office users as well as those wishing to experiment with the SUSE Linux as their desktop system. SUSE Linux Professional is sold as boxed sets through distributors as well as online stores. SUSE Linux Professional with a typical retail price tag of $89.95 (with lower prices for students and for those updating from a previous version) is a complete Linux distribution, suitable for small office/home office or even an enterprise. This book includes a DVD with a Special Edition version of SUSE Linux Professional, with everything you need to use it as a personal desktop system. This book also includes a coupon that you can use to pur- chase a copy of the full SUSE Linux Professional distribution. If you are starting out with SUSE Linux, you need a beginner’s guide that not only gets you going with the installation and setup of SUSE Linux, but also shows you how to use all the tools that come with your desktop. That’s why I wrote SUSE Linux 9.3 For Dummies in plain English, using a breezy style, that quickly gets to the step-by-step instructions for accomplishing a task, be it installing a printer or crafting a memo with OpenOffice.org Writer. My goal is to minimize confusion and keep things as simple as possible. I present the essential steps for specific tasks, but avoid inundating you with too many details. Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.
2 SUSE Linux 9.3 For Dummies About This Book SUSE Linux 9.3 For Dummies is a beginner’s guide for the upcoming SUSE Linux distribution. The approach to the subject matter and the writing style is that of the successful For Dummies series. The focus is on introducing you to the SUSE Linux desktop with all the GUI tools, including the office pro- ductivity suite (OpenOffice.org) and multimedia applications (audio player, digital camera, CD burning, image editing, and so on). I include a chapter on connecting to the Internet using cable/DSL modems and setting up a basic home network because these have become necessities for anyone who has more than one PC and, especially, for those who plan to run SUSE Linux on a PC. I also include a part that introduces the basics of routine system adminis- tration, how to add and update software, and how to tighten up the system’s security. Here are some of the things that this book shows you how to do: Install and configure SUSE Linux from the DVD-ROM included with the book. Connect the SUSE Linux system to the Internet through a DSL or cable modem. Set up dialup networking. Add a wireless Ethernet to your existing network. Get tips, techniques, and shortcuts for various uses of SUSE Linux, such as • Using the OpenOffice.org office suite • Browsing the Linux file system • Using Linux commands • Using multimedia applications Understand the basics of system and network security. Perform system administration tasks. Conventions Used in This Book I use a simple notational style in this book. All listings, filenames, commands, and keywords are typeset in a monospace font for ease of reading. I italicize the first occurrences of new terms and concepts, and then provide a defini- tion right there. I show typed commands in boldface. The output of com- mands and any listing of files is shown in a monospace font. Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.
Introduction 3 What You Don’t Have to Read Each chapter zeros in on a specific task area — such as using the Internet or preparing documents with OpenOffice.org — and then provides hands-on instructions on how to perform a series of related tasks. You can jump right to a section and read about a specific task. You don’t have to read anything but the few paragraphs or the list of steps that relate to your question. Use the Table of Contents or the Index to locate the pages relevant to your question. You can safely ignore text next to the Technical Stuff icons as well as the side- bars. However, if you are the kind who likes to know some of the hidden details of how Linux works, by all means, dig into the Technical Stuff and the sidebars. Who Are You? I assume that you are somewhat familiar with a PC — you know how to turn it on and off and you have dabbled a bit with Windows. Considering that most new PCs come preloaded with Windows, this assumption is safe, right? And I assume that you know how to use some of the Windows applications such as Microsoft Office. Most of all, you want to either experiment with or switch to SUSE Linux as your desktop of choice. When installing SUSE Linux on your PC, you may want to retain your Windows 2000 or Windows XP installations. I assume that you are willing to accept the risk that when you try to install SUSE Linux, some things may not quite work. Problems can happen if you have some uncommon types of hardware. If you are afraid of ruining your system, try finding a slightly older spare Pentium PC that you can sacrifice and then install Linux on that PC. How This Book Is Organized SUSE Linux 9.3 For Dummies contains 23 chapters organized into five parts. The book’s organization is that of a typical For Dummies title that covers an operating system such as SUSE Linux where the reader is expected to install the software and then learn to use it. The five parts cover installation and setup, test driving the system to learn the ropes, using the system to do productive work, learning to be a budding system administrator, and the mandatory “Part of Tens.” Here’s a quick overview of the five parts and the appendix: Part I: Getting to Know SUSE introduces the reader to SUSE Linux, pro- vides step-by-step installation instructions, and explains what happens when you start the system for the first time. Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.
4 SUSE Linux 9.3 For Dummies Part II: Test Driving SUSE is about getting started with SUSE Linux — how to use the desktop and the file manager, how to connect to the Internet (and set up a home network), and figuring out what else is there to play with. Part III: Doing Stuff with SUSE turns to doing day-to-day things with the SUSE Linux system such as browsing the Web, reading e-mail and news- groups, using the OpenOffice.org office suite and some multimedia appli- cations, and, finally, working with the command line shell. Part IV: Becoming a SUSE Wizard includes chapters on the basic system administration and security. In particular, Part IV explains how to add new software and keep the SUSE system up to date with the YaST (Yet another Setup Tool) installation/configuration tool and YaST Online Update (YOU). Part V: The Part of Tens is the standard Part of Tens with chapters that present ten frequently asked questions about SUSE, ten best things about SUSE, ten great SUSE-related Web sites, and ten most commonly used SUSE Linux commands. Appendix: About the DVD-ROM summarizes the contents of the book’s companion DVD-ROM. What’s on the DVD? The DVD contains a Special Edition version of SUSE Linux 9.3 Professional. You may use the DVD in accordance with the license agreements accompany- ing the software. To find out more about the contents of the DVD, please con- sult the appendix. Sidebars Sometimes I use sidebars to highlight interest- or give a little insight into a related topic. If you’re ing, but not critical, information. Sidebars explain in a hurry, you can safely skip the sidebars. concepts you may not have encountered before Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.
Introduction 5 Icons Used in This Book Following the time-honored tradition of the For Dummies series, I use icons to help you quickly pinpoint useful information. The icons include the following: The Remember icon marks a general interesting fact — something that I think you might want to know and remember. The Tip icon indicates things that you can do to make your job easier. The Warning icon highlights potential pitfalls. With this icon, I’m telling you: “Watch out! This could hurt your system!” The Technical Stuff icon marks technical information that could be of interest to an advanced user (or those of us aspiring to be advanced users). Where to Go from Here It’s time to get started on your SUSE Linux adventure. Take out the DVD and install SUSE Linux, following the instructions in Chapter 2. Then, turn to a rel- evant chapter and let the fun begin. Use the Table of Contents and the Index to figure out where you want to go. Before you know it, you’ll become an expert at SUSE Linux! I hope you enjoy reading this book as much as I enjoyed writing it! Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.
6 SUSE Linux 9.3 For Dummies Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.
Part I Getting to Know SUSE Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.
In this part... T his part is all about getting you started on your way to a lasting relationship with SUSE Linux. Before you can begin your SUSE Linux experience, I spend a chapter explaining what SUSE Linux is and what you can do with SUSE Linux (pretty much anything you can do with a PC that runs Windows). To start using SUSE Linux, first you must install SUSE Linux on your PC’s hard drive. SUSE Linux installation is quite simple, and I explain everything in Chapter 2. In Chapter 3 of this part, I guide you through a quick tour of SUSE Linux, primarily focusing on the key steps: booting the system, logging in, using the KDE and GNOME desk- tops, and shutting down the system. The final chapter in this part gives you an overview of all the applications in SUSE Linux — as a precursor to using these applications to get some productive work out of your SUSE Linux system. Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.
Chapter 1 What Is SUSE Linux? In This Chapter Explaining what Linux is Going over what SUSE Linux includes Introducing you to what SUSE Linux helps you do Getting started with SUSE Linux I bet you’ve heard about Linux, even if you may not know much about SUSE (pronounced soo-za) Linux. Even if you haven’t, don’t worry: I’ll explain everything about Linux, what the different names like SUSE and Red Hat mean, what SUSE Linux includes, and how to get started with SUSE Linux. By the way, SUSE Linux runs on computers with Intel 80x86 and Pentium processors (basically any PC that can run any flavor of Windows). If you have a PC, you can install SUSE Linux on it and experience firsthand what the fuss is all about. Getting a Handle on Linux You know that your PC is a bunch of hardware — things you can touch, like the system box, monitor, keyboard, and mouse, as shown in Figure 1-1. The system box contains the most important hardware of all — the central processing unit (CPU), the microchip that runs the software (any program that tells the com- puter how to do your bidding), which you actually can’t touch. In a typical Pentium 4 PC, the Pentium 4 microprocessor is the CPU. Other important hardware in the system box includes the memory (RAM chips) and the hard drive — and one program has to run all this stuff and get it to play nice: the operating system. Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.